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docs/reference/js/lessons/love-meter/challenges.md

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+# love meter challenges
+
+create a love meter with the BBC micro:bit  #docs
+
+## Before we get started
+
+Complete the following guided tutorial:
+
+* [tutorial](/microbit/lessons/love-meter/tutorial)
+
+At the end of the tutorial, click `keep editing`. Your code should look like this:
+
+```
+input.onPinPressed("P0", () => {
+    let x = Math.random(11)
+    basic.showNumber(x, 150)
+})
+```
+
+### Challenge 1
+
+Add a pause of 3000 milliseconds (3 seconds) after showing the number so that the number won't immediately disappear in the next challenge.
+
+```
+input.onPinPressed("P0", () => {
+    let x1 = Math.random(11)
+    basic.showNumber(x1, 150)
+    basic.pause(3000) // ***
+})
+```
+
+### Challenge 2
+
+If the rating **x** is between ``0`` and ``3`` (strictly less than ``4``), display the text "HORRIBLE!".
+
+```
+input.onPinPressed("P0", () => {
+    let x2 = Math.random(11)
+    basic.showNumber(x2, 150)
+    basic.pause(3000)
+    if (x2 < 4) {
+        basic.showString("HORRIBLE!", 150) // ***
+    }
+})
+```
+
+### Challenge 3
+
+### @video td/videos/love-meter-3
+
+If the rating is between 4 and 7, display the text "MEDIOCRE!" **else** display the text "MATCHED!"
+
+```
+input.onPinPressed("P0", () => {
+    let x3 = Math.random(11)
+    basic.showNumber(x3, 150)
+    basic.pause(3000)
+    if (x3 < 4) {
+        basic.showString("HORRIBLE!", 150) // ***
+    } else if (x3 < 8) {
+        basic.showString("MEDIOCRE!", 150) // ***
+    }
+    else {
+        basic.showString("MATCHED!", 150) // ***
+    }
+})
+```
+
+### Challenge 4
+
+Use `basic->plot image` or `basic->show animation` to display images and animations instead of text for each case.
+